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12768528 = 243318581
BaseRepresentation
bin110000101101…
…010100010000
3220000201010110
4300231110100
511232043103
61133401320
7213350013
oct60552420
926021113
1012768528
117231203
124339240
132850a56
1419a537a
1511c3403
hexc2d510

12768528 has 40 divisors (see below), whose sum is σ = 34053376. Its totient is φ = 4118400.

The previous prime is 12768517. The next prime is 12768583. The reversal of 12768528 is 82586721.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2803 + ... + 5778.

Almost surely, 212768528 is an apocalyptic number.

It is an amenable number.

12768528 is an abundant number, since it is smaller than the sum of its proper divisors (21284848).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12768528 is a wasteful number, since it uses less digits than its factorization.

12768528 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8623 (or 8617 counting only the distinct ones).

The product of its digits is 53760, while the sum is 39.

The square root of 12768528 is about 3573.3077113509. The cubic root of 12768528 is about 233.7295436167.

The spelling of 12768528 in words is "twelve million, seven hundred sixty-eight thousand, five hundred twenty-eight".

Divisors: 1 2 3 4 6 8 12 16 24 31 48 62 93 124 186 248 372 496 744 1488 8581 17162 25743 34324 51486 68648 102972 137296 205944 266011 411888 532022 798033 1064044 1596066 2128088 3192132 4256176 6384264 12768528